The 1980 Pennsylvania Lottery scandal, colloquially known as the Triple Six Fix, was a plot to rig the Daily Number, a three-digit game the Pennsylvania Lottery offers. All of the balls in the three machines, except those numbered 4 and 6, were weighted, meaning that the drawing was almost sure to be a combination of those digits. The scheme was successful in that 666 (one of the eight combinations that the "fixers" were hoping for) was drawn on April 24, 1980; however, the unusual betting patterns alerted authorities to the crime. The chief conspirators were sent to prison, and most of the fraudulently acquired winnings were never paid out.

Perry first discussed his idea with Peter Maragos and Jack Maragos, two of his partners in a vending business. Once committed to the plan, Perry approached local Pittsburgh lettering expert and WTAE art director Joseph Bock about creating weighted ping-pong balls that were replicas of the official balls used in the lottery machines. Bock agreed to help, and experimented with powder and other substances until he settled on white latex paint. Bock performed careful experiments to determine just the right amount of paint to use so that the weighted balls could fly up off the bottom of the machine, but not high enough to reach the vacuum tube so the ball would be drawn out of the machine. The men thought it would be too risky to weight nine of the ten balls for each machine, so they decided to leave both the 4 and 6 balls unchanged. Those would be the only balls light enough to actually be drawn. This would reduce the number of possible combinations to eight: 444, 446, 464, 466, 644, 646, 664, and 666. Bock then applied labels on the balls (obtained from an art supply store) that matched the originals.

Perry got access to the machines and ping-pong balls through Edward Plevel, a lottery official. Plevel left the machines and balls unguarded for several minutes on a few occasions. Perry also got WTAE stagehand Fred Luman to actually switch the original balls with the weighted ones before and after the drawing. Bock then took the rigged balls back to his studio and burned them in a paint can a half-hour after the on-air drawing was done.

On the night of April 24, 1980, more than six million viewers watched as 666 was pulled as the winning number. Nick Perry, the announcer, never drew the winning numbers; this was always done by a senior citizen volunteer, as the lottery benefits senior citizens in Pennsylvania. (Today, an official draws the numbers, and a senior citizen is on-camera to witness the draw.) Lottery authorities and local bookmakers became suspicious when they noticed that a large number of tickets were purchased for the eight possible combinations, and a handful of players came forward to claim approximately $1.8 million ($5.15 million today) of the then-record $3.5 million payout ($10 million today). At first, they had no actual evidence that the drawing was fixed.

On the date of the drawing, the Maragos brothers travelled around Pennsylvania buying large quantities of tickets containing the eight possible numbers. The investigation was broken open when an anonymous tip led to a bar near Philadelphia where the brothers had bought a large number of lottery tickets. An employee remembered the brothers coming into the bar with a platinum-blonde woman and laying down a large amount of cash to buy lottery tickets, all on the eight specific numbers. The employee recalled that while he printed the tickets, one of the brothers made a pay phone call, spoke in a foreign language, and held up the phone so the listener could hear the lottery machine printing the tickets. Investigators pulled the phone records and traced the call to the WTAE-TV announcer's booth in the studio where the drawing was done. This strongly implicated Perry (who, like the Maragoses, could speak fluent Greek), but it was also clear that he could not have acted alone. Further investigation and questioning of the Maragos brothers eventually implicated the rest of the men. William Moran of Fairmont, West Virginia organized the out-of-state buying of additional lottery tickets for a numbers-running scam.

It was later revealed that the Maragos brothers also placed bets on the eight numbers with local bookmakers who had illegal numbers games that used the lottery drawing as the winning result. The brothers also told friends and family which numbers to play. All of this may have contributed to the conspiracy's downfall, with the greater influx of slanted bets.

A grand jury was assembled and charges were leveled against all six men. Plevel was convicted and spent two years in prison. Bock, Luman, and Moran pleaded guilty in exchange for lighter sentences. The Maragos brothers avoided jail time by agreeing to testify against Perry. Much of the $1.8 million ($5.15 million today) was recovered from the Maragos brothers, as were numerous lottery tickets.

Perry was convicted of criminal conspiracy, criminal mischief, theft by deception, rigging a publicly exhibited contest and perjury on May 20, 1981.[1] He was sentenced to seven years in prison. He served two years at State Correctional Institution – Camp Hill and spent another year at a halfway house in the East Liberty section of Pittsburgh, Pennsylvania. Perry remained on parole until March 1989. He held a number of jobs after prison including an unsuccessful attempt to return to broadcasting in the late 1980s. Perry died in Attleboro, Massachusetts on April 22, 2003, having never admitted to any role in the plot.

After the scandal, the Pennsylvania Lottery and other drawings began taking greater precautions to guard against rigging.

In Pennsylvania, the number 666 is still often referred to as a "Nick Perry."[citation needed] The combination 666 came up as the winning number in the mid-day drawing most recently on March 31, 2011—the 18th time in the Lottery's history.

The drawings for the Lottery were moved from WTAE to WHP-TV in the state capital of Harrisburg, Pennsylvania on June 29, 1981, on orders of Governor Dick Thornburgh who made the announcement on June 10, 1981, along with the addition of a "security chief" and background checks on all staff related to the drawings.[1] The Pittsburgh market broadcasting rights were given to KDKA-TV in 1981 as well. In Harrisburg, despite the drawings being held at WHP, they air locally on rival station WGAL, which ironically has been a sister station to WTAE since 1999. It would not be until July 1, 2009, that the Lottery would resume airing on WTAE, where they would remain until July 1, 2015 when WPXI took over.